Machine for washing plates, knives, forks, and the like.



H. LOFQUIST.

' MACHINE FOR WASHING PLATES, KNIVES, FORKSfAND THE LIKE.-

APPLICATION FILED JULY 28, 1am

1,189,7071; Patented July 4,1916;

ibm risrfor sroc inotivjr, swnnniijfff MA criiiaE toR wasiiiiwe rn irns, nives, FORKS; AND THE LIKE,

B' it known lthat- I, HJAmrAir Loronisr,

a subject of'the ungott' Sweden; residing at Birger 'JarlsgatanwQL Stockholm, TSweden, have "invented new and usefullmprovements in Machines! for lashing :Pl'ates, Knives, Forks," and: the like,' ofwhich the following is a specificationfl- T-he present invention frelates't'o a machine for washing platesyknives ,forks and like articles of the kind comprising a rotary water drum the sides of which; are so formed as to cause a vigorous circulationz-of'tlie water fu'pon the article's to be washed; the latter b'eing contained in a cage-or basket suitably suspended in said=druini I wThe objectof the-present invention is to I obtained a'vhereby' the cleansed.

wall of the rotary provide "an "improved construction. of,v machine in which a particularly strong splashing action of the water uponithearticles is V latter are effectively According to the "invention the interior drum is provided with a seriesof'flat s'u'rfacesso arranged-as to form pro ecting angles" and also recesses, whereby 7 strong splashing motien ofthe' water addrum" or may be stationary',

mitted into the drumtis obtained which facilitates the cleansing "-ofthe articles I; The

articles are" preferably contained --in a bas-" 'ket' in i the drum whichlinay s'rotate with the bearings open at'ithe top being "provided for the-basket whereby-it will be easy tointroduce" and remove' same; The dru'nr-"is preferably open on a part Y of itsperiphery for facilitating the introduction of the basket and also for effecting a change 'of' w'aterin" the drum from a surroundii ig stationary receptacle or pent-amen To en able'the invention to beyfully understood it will now be=descr-ibed by reference to the: accompanying drawings,.in which Figure 1 is a partse'cti'onal elevation of one form of washing machine constructeclgac cording to theinvention"andQEig -Q a section on the line 22 in Fig; '1.

As shown in the drawings, a frame 1 supports a receptacle 2 for washing water, said receptacle being provided with a cover 3, preferably semi-cylindrical and hinged at the' center so that" it canbe opened by swinging' one portion upward. In said receptacle;

water therein. Bearings a pair of heating elements 4, which may be electric, may be arranged for heating the Specification of Iietters Patent.

that, the ,druniis plGVlClBCl w th projecting angles or intense motion .0

5 are carried inat nted July Application filed J'ii1y28,1914. Serial No. 853F733;

the/Walls the receptacle for receiriug the hollowjournals Got a rotary drum T. which can be rotated byw neans of a pull cured to one of the hollow journal: side thereceptacle 2. tuated by'ineans of a belt Qfrom a pub lev 10,.drirenby ineansojt' a bQYQl irlioet 1 g Ollqfl; shaft 12 which latter is drirrm h means of worm and wheel or like'gear cou-- tained in a casing 13 by an electric we 1 b The shaft 12, in the form shown. 1;: extended for the purpose of (i1 ing other s multaneously working mash i m for analogous purposes. such for iiist ncc' vas a knife polishingIinachinc. Thearrange vThe pulley -8 Lac 7 inent ofthe driving gear, however-Qmaylm varied in several ways. I r The drum 7, inthe forinshown. isopen for about one fifth of its'pei'iphery to 61 ableithe plates and the like to be i ntro-- duced, and also to facilitate the changing of the water injthe drum.

purpose holes 15 may. also be provided in the end walls of the drum, Around the in-l terior of the drum, four angularly; bent] plates or bars 16 are arranged so shaped free space intheinterior of the portions 17-, andrecesses 18 formed by the s1des20 as shown. By reason of this ar-' rangeinent tliewater in the rotating drum For the latter receives an intense and vigorous splashing motion, especially, at the moments when the h .l angles 1 a and recesses 18 passthe water su ts, face, said-passage causing, especially if the sides 2O, as shown, are substantially radial,

a rapid di'splac ementflof the upper water, layers n one direction orthe other )Ylth an accompanying splash. It has beenfound that, even at a moderate speed of, the

(about 1Q20, revolutions per minute). such that as largea quantity. of lates or the like as? the basket can hold cang-becompletely cleansedinaboutl minutes. A Stationary, bearings for the frame b tas ket carrying theplatesor the. like project into the hollow journals 6 of the drum and, I" these hearings are'preferably open at the top for facilitatingthe introduction of the basket in the known manner. In the form shown, they simply consist of substantially U-shaped irons19 ofa suitably curved profile. The basket placed therein is preferably so arranged as to be carried around" with the rotation of the drum fort/instance f the water is obtained,

provided'with a finger 30 engaging a projecting surface of the drum, but it may be stationary if desired. The shape of the hasket may be varied in many ways, according to the objects to be carried therein.

As here shown the ends of the basket for receiving the plates consist ofv pieces 20 arranged in star shape and connected together by longitudinal bars 21. Four arms of these end pieces 20 are fixed but two arms are pivotally mounted as shown so that they can be pressed apart to allow the plates to be introduced. These pieces 22 are locked in the closed position by means of suitable latches 23. Pins 24 are arranged on the bars 21 for guiding the plates 25, one plate being shown at 25. The basket shown is adapted for 15 plates. It will be obvious that various methods of formin the polygonal interior of the drum may %e adopted.

Having now particularly described the nature of my invention and the manner of its operation, what I claim is:

1. In a washing machine, a drum having in the interior a series of fiat surfaces so arranged as to provide projecting angles and also recesses, said recesses being bounded by the wall of the drum and by a side which is substantially radial to the center of the drum, means for supporting plates, knives, forks and the like within said drum, said means being adapted to be rotated with the drum, and means for rotating said. drum.

2. In a washing machine, a frame, a receptacle supported thereby, a semi-cylindrical cover for said receptacle and having a hinged portion adapted to be opened for obtaining access to the receptacle said recep- 'tacles being adapted to contain washing water, heating means mounted in the receptacle, bearings at opposite sides of the receptacle, a drum positioned in the receptacle and having rigid hollow journals pros jecting through said bearings, a motor having operative connections with one of said journals for rotating said drum, means for obtaining access to the interior of the drum, deflectors on the inner surface of the drum, said drum having openings therethrough to permit the free circulation of the washing water therethrough. stationary bearings mounted in said hollow journals, a basket contained within the drum and supported at opposite sides in said stationary bearings, said basket being adapted to be opened and closed, and for supporting articles to be cleansed therein, and means between the drum and basket for causing the latter to be rotated therewith.

3. In a washing machine, a drum having in the interior a series of flat surfaces, hollow journals for said drum, stationary hearings projecting inward through said journals, a basket forsupporting plates, knives, forks and the like restingin said bearings, and means for rotating the drum.

4, In a washing machine, a drum having in the interior a series of flat surfaces, hollow journals for said drum, stationary open bearings projecting inward through said journals, a basket for supporting plates,

knives, forks and, the like ,adapted to be journaled in said open bearings, and means for rotating the drum.

5. In a washing machine, a drum having in the interior a series of fiat surfaces. hollow journals for said drum, stationary bearings projecting inward through said journals, a basket for supporting plates. knives, forks and the like resting in said bearings and engaging said drum so as to be carried around thereby in rotating, and means for rotating said drum.

6. In a washing machine, a drum, projectionsupon the interior surface of the drum, journals supporting said drum, bearings engaged in said journals, a basket for supporting plates and the like, resting in said bearings, said basket comprising two end pieces consisting of arms arranged in the shape of a star, bars horizontally conmeeting said arms in opposed pairs, said bars having spaced guiding pins for the plates and the like, two of the arms of each end piece being pivoted to other of the arms to allow the same to be pressed apart to open the basket for inserting the plates and the like therein, and moved together to prevent displacement of the plates and the like, means to connect said pivoted arms to hold the same from separating movement, and means for rotating the drum.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HJALMAR LoroUIsT.

lVitnesses BIRGER Nonnrnnnr, GICTA PIREN. 

